CN215421229U - Cover plate assembly and electronic equipment - Google Patents

Abstract

The application relates to a apron subassembly and electronic equipment, the apron subassembly includes apron and electrochromic body, and the electrochromic body is located the apron, and the periphery of electrochromic body is used for setting up the antenna element, and the electrochromic body sets up with the antenna element interval, and at least one tip of electrochromic body is equipped with the gap opening. When using the apron subassembly in the electronic equipment including antenna element, the electrochromic body in its apron subassembly can laminate in the regional setting of discolouing of apron, and the gap opening can reduce the square resistance of electrochromic body, weakens the absorption effect of electrochromic body, reduces the influence to antenna element radiation performance, can further reduce the width of dodging regional under the prerequisite that can guarantee not to increase the radiation performance influence to antenna element to further improve electronic equipment's outward appearance decorative effect.

Description

Cover plate assembly and electronic equipment

Technical Field

The present application relates to the field of antenna technology, and in particular, to a cover plate assembly and an electronic device.

Background

With the extreme pursuit of the user for the use experience, the appearance requirement of the user on the electronic equipment such as the smart phone and the tablet personal computer is higher and higher. Electrochromic electronic devices have received wide attention from users due to their ability to display different colors in different situations.

However, since the electrochromic body easily affects the antenna performance of the electronic device, it is necessary to maintain a certain distance from the antenna unit, resulting in a poor appearance of the whole.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a apron subassembly and electronic equipment, can reduce electrochromic body and antenna element's interval and reduce electrochromic body to antenna performance influence degree simultaneously, improves electronic equipment's outward appearance effect.

A cover plate assembly comprising:

a cover plate;

the electrochromic body is located on the cover plate, the periphery of the electrochromic body is used for arranging an antenna unit, the electrochromic body and the antenna unit are arranged at intervals, and at least one end of the electrochromic body is provided with a gap opening.

An electronic device, comprising:

a cover plate assembly as described above, and

the frame is located the periphery of apron and with the apron is connected, be formed with antenna element on the frame.

Above-mentioned apron subassembly and electronic equipment, including apron and electrochromic body, the electrochromic body is located the apron, and the periphery of electrochromic body is used for setting up antenna element, and the electrochromic body sets up with antenna element interval, and at least one tip of electrochromic body is equipped with the gap opening. When using the apron subassembly in the electronic equipment including antenna element, the electrochromic body in its apron subassembly can laminate in the regional setting of discolouing of apron, and the gap opening can reduce the square resistance of electrochromic body, weakens the absorption effect of electrochromic body, reduces the influence to antenna element radiation performance, can further reduce the width of dodging regional under the prerequisite that can guarantee not to increase the radiation performance influence to antenna element to further improve electronic equipment's outward appearance decorative effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of an electronic device in one embodiment;

FIG. 2 is a perspective view of an electronic device in one embodiment;

FIG. 3 is a perspective view of an electronic device in one embodiment;

FIG. 4 is a schematic diagram of an embodiment of a cover plate assembly;

FIG. 5 is a schematic diagram of an embodiment of a cover plate assembly;

FIG. 6 is a schematic diagram of an embodiment of a cover plate assembly;

FIG. 7 is a schematic diagram of an embodiment of a cover plate assembly;

FIG. 8 is a schematic diagram of an embodiment of a cover plate assembly;

FIG. 9 is a schematic diagram of an embodiment of a cover plate assembly;

FIG. 10 is a schematic diagram of an embodiment of a cover plate assembly;

FIG. 11 is a cross-sectional view of a cover plate assembly according to one embodiment;

FIG. 12 is a diagram illustrating an electronic device according to an embodiment;

fig. 13 is a schematic structural diagram of an electronic device in an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

As described in the background of the present application, in the related art, in order to improve the appearance effect of the electronic device, when the cover plate assembly having the electrochromic element is used, since the electrochromic element easily affects the antenna performance of the electronic device, a certain distance needs to be kept from the antenna unit, resulting in the deterioration of the overall appearance effect.

The electrochromic body is easy to affect the antenna performance of the electronic device, mainly because the electrochromic body needs to be electrified, the conducting layer used for electrifying is often large in sheet resistance, and the conducting layer with the large sheet resistance can absorb energy, so that the radiation performance of the antenna unit is reduced. In order to reduce the influence on the radiation performance of the antenna, the electrochromic body needs to keep a larger distance from the antenna unit, so that the overall appearance effect is poor.

Therefore, in order to solve this problem, the present embodiment discloses a cover plate assembly and an electronic apparatus. The technical solution of the present application will be further described with reference to the following embodiments and the accompanying drawings.

The electrochromic module related to the embodiment of the present application may be applied to an electronic device having a wireless communication function, and the electronic device may be a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing devices connected to a wireless modem, and various forms of User Equipment (UE) (e.g., a Mobile phone), a Mobile Station (MS), and the like. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.

In an embodiment, as shown in fig. 1 to fig. 3, an electronic device is taken as a mobile phone for illustration. The electronic device 10 includes a display screen assembly 11, a bezel 12, and a cover assembly 13.

The Display screen assembly 11 includes a Display screen 111, the Display screen 111 may be an OLED (Organic Light-Emitting Diode) screen or an LCD (Liquid Crystal Display) screen, and the Display screen 11 may be configured to Display information and provide an interactive interface for a user. The shape of the display screen 111 may be a rectangle or an arc-corner rectangle, and the arc-corner rectangle may also be referred to as a rounded rectangle, that is, four corners of the rectangle are in arc transition, and four sides of the rectangle are approximately straight line segments.

The frame 12 may be made of a metal material such as aluminum alloy or magnesium alloy or stainless steel, and the frame 12 is disposed at the periphery of the display screen 11 for supporting and protecting the display screen assembly 11. Bezel 12 may further extend into the electronic device to form a midplane, and the integrally formed midplane and bezel 12 are sometimes referred to as a midplane. The display screen assembly 11 may be fixedly connected to the frame 12 or the middle plate by using a dispensing process. The frame 12 is substantially rectangular frame-shaped, and includes a top frame 121 and a bottom frame 123 disposed opposite to each other, and a first side frame 122 and a second side frame 124 connected between the top frame 121 and the bottom frame 123, wherein the first side frame 123 and the second side frame 124 are disposed opposite to each other, and the top frame 121, the first side frame 122, the bottom frame 123 and the second side frame 124 are sequentially connected end to end and located on the periphery of the middle plate. The connection between the frames can be a right-angle connection or an arc transition connection. Further, when the frame is a metal frame, the frame 12 may be formed with antenna units for radiating radio frequency signals of different frequency bands. Specifically, the antenna unit may be formed by a slit provided on the frame.

The cover plate assembly 13 is disposed on a side of the displayable region facing away from the display screen 111 and connected to the frame 12. Further, the display screen assembly 11 and the cover plate assembly 13 are respectively located on two opposite sides of the middle plate. An installation space may be formed between the cover plate assembly 13 and the display screen 111 for installing electronic components such as a battery, a main board, a camera module, etc. of the electronic device. The mainboard can integrate electronic components such as a processor, a storage unit, a power management module, a baseband chip and the like of the electronic equipment. The mainboard is arranged on one side of the displayable area of the back display screen 111, and the mainboard can be fixedly connected with the middle frame through structural members such as screws. The main Board may be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit). On this substrate, a part of radio frequency circuits for processing radio frequency signals may be integrated, and a controller or the like capable of controlling the operation of the electronic device 10 may be integrated. The radio frequency circuits include, but are not limited to, an antenna assembly, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuitry may also communicate with networks and other devices via wireless communications.

The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE)), e-mail, Short Messaging Service (SMS), and the like.

As shown in fig. 4, the present embodiment provides a cover plate assembly 13, and the cover plate assembly 13 includes a cover plate 131 and an electrochromic body 132.

In the present embodiment, the electrochromic body 132 is located on the cover plate 131, the periphery of the electrochromic body 132 is used for disposing the antenna unit, the electrochromic body 132 is disposed at a distance from the antenna unit, and at least one end portion of the electrochromic body 132 is provided with a slit opening (the slit opening is not shown in fig. 4).

The cover 131 is used to form an outer contour of the electronic device 10, and may serve as a rear case of the electronic device 10. The cover plate 131 may be integrally formed. In the molding process of the cover plate 131, structures such as a rear camera hole, a fingerprint identification module, an antenna assembly mounting hole and the like can be formed on the cover plate 131. The cover plate 131 may be made of a transparent material, for example, the cover plate 131 may be a plastic transparent cover plate, a glass transparent cover plate, or the like.

Wherein the electrochromic body 132 can realize the conversion between a colored state and a transparent state, wherein the electrochromic body 132 has a set color, such as white, red, blue, green, etc., or a combination of colors, when in the colored state. The color that electrochromic body 132 appeared when coloring the state can see through apron 131, and then appears different colours on apron 131, when apron 131 is applied to electronic equipment 10, can promote the outward appearance expressive force of backshell, provides better decorative effect for electronic equipment. The switching between the colored state and the transparent state may be set according to actual requirements, and for example, the colored state may be presented under the condition of power supply and the transparent state may be presented when the power supply is not supplied, or the transparent state may be presented under the condition of power supply and the colored state may be presented when the power supply is not supplied.

The cover plate 131 comprises a color changing region 1311 and an avoiding region 1312, the avoiding region 1312 is arranged along the periphery of the color changing region 1311, and the electrochromic body 132 is orthographically projected on the color changing region 1311; the avoidance region 1312 is a minimum interval between the electrochromic body 132 and the peripheral antenna unit, and the avoidance region 1312 enables the electrochromic body 132 and the antenna unit to be arranged at intervals to slow down the influence of the electrochromic body 132 on the performance of the antenna, and also enables the electrochromic body 132 and the frame 12 of the electronic device to be arranged at intervals to realize the insulating arrangement of the electrochromic module and the frame 12. The side of the escape area 1312 of the cover plate 131 facing away from the color change area 1311 is connected to the frame 12.

At least one end of the electrochromic body 132 is provided with a slot opening, wherein the end provided with the slot opening may be located on the same side of the cover plate 131 as the side of the electrochromic body 132 on which the antenna unit is located, or may be located on a different side. The arrangement of the gap opening of the electrochromic body 132 can reduce the square resistance of the electrochromic body 132 to reduce the overall absorption of the energy of the electrochromic body 132, thereby reducing the influence of the electrochromic body 132 on the performance of the antenna unit, further reducing the width of the avoiding region 1312 on the premise of ensuring that the influence of the radiation performance of the antenna unit is not increased, and further improving the appearance decoration effect of the rear shell.

The number and the positions of the slot openings can be set according to the shapes, the sizes and the distribution conditions of the slot openings and the antenna units. The number of the slot openings may correspond to the number of the antenna elements, for example, when the number of the antenna elements is multiple, a plurality of slot openings may be provided, and the overall sheet resistance of the electrochromic body 132 may be further reduced by the plurality of slot openings, so as to reduce the influence on the radiation performance of the antenna element, and reduce the width of the avoidance region 1312 on the premise of ensuring that the influence on the radiation performance of the antenna element is not increased. The number of the slot openings may not correspond to the number of the antenna elements, for example, when the number of the antenna elements is increased, the number of the slot openings may be reduced by appropriately increasing the size of the slot openings, and the overall sheet resistance of the electrochromic body 132 may also be reduced, so as to reduce the influence on the radiation performance of the antenna element, and reduce the width of the avoiding region 1312 on the premise of ensuring that the influence on the radiation performance of the antenna element is not increased.

The opening positions of the slot openings may correspond to the distribution positions of the antenna units one to one, for example, as shown in fig. 5 (only the antenna unit and the electrochromic body are shown in fig. 5, 132a is the slot opening, F is the antenna unit, and the dot correspondence is the central position of the slot opening and the central position of the antenna unit), the number of the antenna units is multiple, and the antenna units are divided into four positions a1, B1, C1, and D1, and taking 4 slot openings as an example, 4 slot openings are opened at four positions a2, B2, C2, and D2 of the electrochromic body 132, and four positions a2, B2, C2, and D2 correspond to four positions a1, B1, C1, and D1 one to one; as shown in fig. 6 (only the antenna unit and the electrochromic body are shown in fig. 6, where 132a is a slot opening, F is an antenna unit, and dots therein correspond to the central position of the slot opening and the central position of the antenna unit), when 2 slot openings are taken as an example, 2 slot openings are opened at two positions A3 and B3 of the electrochromic body 132, the position A3 corresponds to the positions a1 and B1, and the position B3 corresponds to the positions C1 and D1.

When the opening position of the slot opening corresponds to the distribution position of the antenna unit, on one hand, the overall sheet resistance of the electrochromic body 132 is reduced due to the opening of the slot opening, so that the width of the avoidance region 1312 can be further reduced on the premise of ensuring that the influence on the radiation performance of the antenna unit is not increased; on the other hand, since the opening positions of the slot openings correspond to the distribution positions of the antenna units, the actual distance between the electrochromic body 132 and the antenna units at the slot openings is increased, so that the distance between the end portions where the slot openings are located and the antenna units can be further reduced, that is, the width of one side of the avoidance region 1312 can be further reduced on the premise of ensuring that the radiation performance of the antenna units is not greatly affected.

It should be noted that the opening positions of the slot openings may not correspond to the distribution positions of the antenna units one by one, for example, the slot openings may be disposed at positions close to the distribution positions of the antenna units.

Wherein, the open width and the opening degree of depth of slot opening can be according to actual outward appearance effect demand and antenna performance receiving balanced setting of compromising of degree of influence. Optionally, in order to improve the compromise balance between the appearance effect requirement and the degree of influence on the antenna performance, the depth of the slot opening is less than or equal to 2 mm.

In some embodiments, as shown in fig. 7, one side of the periphery of the electrochromic body 132 is used to dispose an antenna unit, and one end of the electrochromic body 132 on the same side as the side is opened with a slot opening (fig. 7 takes a plurality of slot openings as an example, fig. 7 does not show an antenna unit). Accordingly, the opening of the end slit opening can further reduce the width of the total escape region 1312 without significantly affecting the radiation performance of the antenna element, and the width of the escape region 1312 on the end side where the slit opening is located can also be further reduced.

In some embodiments, as shown in fig. 8, four sides of the periphery of the electrochromic body 132 are used for disposing antenna units, and all ends of the electrochromic body 132 are opened with slot openings (fig. 8 takes a plurality of slot openings as an example, fig. 8 does not show antenna units). Accordingly, the opening of the four end slit openings can further reduce the width of the entire escape region 1312 without significantly affecting the radiation performance of the antenna element, and the width of the escape region 1312 can be reduced more than the width of the escape region 1312 when only one end slit opening is provided.

In some embodiments, the projection shape of the slit opening on the cover plate 131 is a rectangular opening shape (see fig. 7 and 8), a V-shaped opening shape (see fig. 9), an arc opening shape (see fig. 10), or a trapezoid opening shape. It should be noted that, when the slit openings are plural, the slit openings may also present different opening shapes, and in order to improve the appearance presenting effect of the electrochromic body 132, the slit openings with different opening shapes are arranged in a preset arrangement rule.

In some embodiments, the slit openings include a first opening and a second opening, and the electrochromic body 132 includes a first conductive layer 210, a second conductive layer 220, and a color-changing material layer 230 (as shown in fig. 11, the first and second openings are not shown in fig. 11).

The first conductive layer 210 is disposed on the cover plate 131, and at least one first end of the first conductive layer 210 is opened with a first opening.

The second conductive layer 220 is disposed opposite to the first conductive layer 210, at least one second end of the second conductive layer 220 is opened with a second opening, and a position of the second end opened with the second opening corresponds to a position of the first end opened with the first opening.

And a color-changing material layer 230 between the first conductive layer 210 and the second conductive layer 220 for switching between a colored state and a transparent state.

The first conductive layer 210 and the second conductive layer 220 have a certain transparency, and can transmit the color of the color-changing material layer 230 in a colored state. The material of the first conductive layer 210 and the second conductive layer 220 may be Indium Tin Oxide (ITO), zinc aluminum oxide (AZO), tin oxide doped with Fluorine (FTO), or a graphene film.

The first conductive layer 210 is provided with a first opening, and the first opening can reduce the sheet resistance of the first conductive layer 210, so as to reduce the influence of the first conductive layer 210 on the radiation performance of the antenna unit; the second conductive layer 220 is provided with a second opening, and the second opening can reduce the sheet resistance of the second conductive layer 220, thereby reducing the influence of the second conductive layer 220 on the radiation performance of the antenna unit.

Wherein, when the first conductive layer 210 and the second conductive layer 220 are electrified, the completely overlapped area of the orthographic projections of the first conductive layer 210 and the second conductive layer 220 on the cover plate 131 controls the color-changing material layer 230 to realize switching between the colored state and the transparent state. Thus, when the cover assembly 13 is applied to an electronic device and the electrochromic body 132 is in a colored state, if an orthographic projection of the second opening on the cover 131 coincides with an orthographic projection of the first opening on the cover 131, the first opening and the second opening may present a visible appearance profile on the electronic device; if the orthographic projection areas of the first opening and the second opening on the cover plate 131 are not completely overlapped, the first opening and the second opening may present a partially visible appearance contour on the electronic device; if the orthographic projection areas of the first opening and the second opening on the cover plate 131 are not overlapped completely, neither the first opening nor the second opening presents a visible appearance contour on the electronic device. Therefore, whether orthographic projections of the first opening and the second opening on the cover plate 131 need to be overlapped or not can be selected according to actual appearance presentation requirements. When the orthographic projection parts of the first opening and the second opening on the cover plate 131 are overlapped, the orthographic projection shape of the slit opening on the cover plate 131 is the overlapped shape of the orthographic projection shape of the first opening and the orthographic projection shape of the second opening; when the orthographic projections of the first and second openings on the cover plate 131 are not overlapped at all, the orthographic projection shape of the slit opening on the cover plate 131 includes a first opening orthographic projection shape and a second opening orthographic projection shape.

Optionally, the number of the first openings is multiple, the sizes of the openings of the multiple first openings are the same, and/or the intervals between two adjacent first openings are equal. The size of the first opening and the arrangement of the distance between the adjacent first openings can be set according to actual appearance requirements and the distribution condition of the antenna units.

Optionally, the number of the second openings is multiple, the sizes of the openings of the multiple second openings are the same, and/or the intervals between two adjacent second openings are equal. The size of the second opening and the arrangement of the distance between the adjacent second openings can be set according to actual appearance requirements and the distribution condition of the antenna units.

Wherein, the color-changing material layer 230 is located between the first conductive layer 210 and the second conductive layer 220, an orthographic projection area of the color-changing material layer 230 on the cover plate 131 can be coincided with an orthographic projection area of the first conductive layer 210 on the cover plate 131 and/or an orthographic projection area of the second conductive layer 220 on the cover plate 131, and an electrochromic effect is realized in an area where the orthographic projection of the first conductive layer 210 and the orthographic projection of the second conductive layer 220 are coincided with each other. The color-changing material layer 230 includes an electrochromic material, which may be an organic electrochromic material such as polythiophene and its derivatives, viologen, tetrathiafulvalene, metal phthalocyanine compounds, or an inorganic electrochromic material such as transition metal oxide or its derivatives, e.g., tungsten trioxide. The electrochromic material can undergo a stable and reversible color change under the action of an external electric field, so that the electrochromic material layer 230 exhibits a reversible change in color and transparency in appearance.

Optionally, the color-changing material layer 230 includes a plurality of color-changing unit layers. A plurality of color-changing unit layers are arranged on the first conductive layer 210, and the plurality of color-changing unit layers are independently controlled to switch between a colored state and a transparent state, respectively. The first conductive layers 210 among the multiple color-changing unit layers can be mutually isolated or integrated, and when the first conductive layers 210 corresponding to the multiple color-changing unit layers are integrated, the multiple color-changing unit layers can be independently controlled through partition control; the second conductive layers 220 between the plurality of color-changing unit layers can be isolated from each other or integrated into a whole, and when the second conductive layers 220 corresponding to the plurality of color-changing unit layers are integrated into a whole, the plurality of color-changing unit layers can be independently controlled through partition control.

In some embodiments, the number of the electrochromic bodies 132 is multiple, the multiple electrochromic bodies 132 are stacked in sequence toward the side away from the cover plate 131, and the projected areas of the multiple electrochromic bodies 132 on the cover plate 131 coincide. The plurality of electrochromic bodies 132 can be set to realize electrochromic effects of different colors and different areas under the condition of power-on, so that the color-changing effects of multiple colors are obtained, and the appearance decorative effect of the cover plate assembly 13 is improved; or the electrochromic effect of the same area with the same color can be set, so that the color presenting effect is deepened, and the appearance decorative effect of the cover plate component 13 is improved.

It should be noted that the electrochromic layer 132 may further include other functional layers and auxiliary layers according to actual situations, specifically, the setting is performed according to actual needs, and is not limited herein.

The cover plate assembly 13 provided by the present embodiment includes a cover plate 131 and an electrochromic body 132, the electrochromic body 132 is located on the cover plate 131, the periphery of the electrochromic body 132 is used for disposing an antenna unit, the electrochromic body 132 and the antenna unit are disposed at an interval, and at least one end of the electrochromic body 132 is provided with a slit opening. When the cover assembly 13 is applied to an electronic device including a frame 12 (for example, an antenna unit for radiating a radio frequency signal is formed on the frame 12), the electrochromic body 132 in the cover assembly 13 may be disposed in the color changing region 1311 of the cover 131, the gap opening may reduce the sheet resistance of the electrochromic body 132, weaken the absorption effect of the electrochromic body 132, reduce the influence on the radiation performance of the antenna unit, and further reduce the width of the avoiding region 1312 on the premise of ensuring that the influence on the radiation performance of the antenna unit is not increased, so as to further improve the appearance decoration effect of the electronic device.

As shown in fig. 12, an electronic device according to an embodiment of the present application includes the cover plate assembly 13 and the bezel 12 according to the above embodiment.

The frame 12 is located at the periphery of the cover plate 131 and connected to the cover plate 131, the antenna unit is formed on the frame 12, and the cover plate assembly 13 refers to the related description of the above embodiments and is not described herein again.

In some embodiments, the frame 12 may be formed into a plurality of antenna units through the slits, and the plurality of antenna units are distributed on the frame 12 near the opening of the slits, so that the width of the avoidance region 1312 may be further reduced on the premise of ensuring that the influence on the radiation performance of the antenna units of the frame 12 is not increased.

In some embodiments, as shown in fig. 12, the frame 12 includes a top frame 121 and a bottom frame 123 disposed opposite to each other, and a first side frame 122 and a second side frame 124 connected between the top frame 121 and the bottom frame 123, where the first side frame 122 and the second side frame 124 are disposed opposite to each other. A first antenna element F1 for radiating a first rf signal is formed on the top frame 121, a second antenna element F2 for radiating a second rf signal is formed on the first side frame 122, a third antenna element F3 for radiating the first rf signal is formed on the bottom frame 123, and a fourth antenna element F4 for radiating the second rf signal is formed on the bottom frame 123. The first radio frequency signal may include an intermediate frequency signal and a high frequency signal, and the second radio frequency signal may include a low frequency signal. It should be noted that the first Radio frequency signal and the second Radio frequency signal may include a 4G Long Term Evolution (LTE) signal, and may also include a 5G New Radio (NR) signal. Illustratively, the first radio frequency signal may include middle and high frequency signals of B1(N1), B3(N3), B40(N40), B41(N41), and the like, and the second radio frequency signal may include low frequency signals of B5(N5), B8(N8), and the like.

Referring to fig. 12, the slot openings include a first slot opening a1, a second slot opening a2, a third slot opening a3, and a fourth slot opening a4, wherein the first slot opening a1 is disposed close to the first antenna element F1, the second slot opening a2 is disposed close to the second antenna element F2, the third slot opening is disposed close to the third antenna element F3, and the fourth slot opening is disposed close to the fourth antenna element F4.

Further, the first antenna element F1 formed on the top frame 121 for radiating medium-frequency and high-frequency signals may be provided with a first slit opening a1 at an end of the electrochromic body 132 adjacent to the top frame 121, wherein the first slit opening a1 may be provided with an opening size and number according to the size of the first antenna element F1. In addition, the second antenna element F2 formed on the first side frame 122 radiates low frequency signals, the third antenna element F3 formed on the bottom frame 123 radiates medium frequency and high frequency signals, and the fourth antenna element F4 radiates low frequency signals, and the second slit opening a2, the third slit opening a3, and the fourth slit opening a4 are opened at the end portions of the electrochromic body 132 adjacent to the second antenna element F2, the third antenna element F3, and the fourth antenna element F4, respectively. Therefore, by opening the first slot opening a1, the second slot opening a2, the third slot opening a3 and the fourth slot opening a4, the overall width of the avoidance region 1312 can be further reduced without increasing the influence on the radiation performance of the antenna unit

Further alternatively, the number of the first slit opening a1, the second slit opening a2, the third slit opening a3 and the fourth slit opening a4 is plural, and the orthographic projection shapes of the first slit opening a1, the second slit opening a2, the third slit opening a3 and the fourth slit opening a4 on the cover plate 131 are all rectangular.

Based on the electronic device shown in fig. 12, the active performance of the antenna unit can be tested, and the specific test results are shown in table 1.

Table 1 shows that by opening and not opening a slot in the electrochromic body 132, the radiation power of each antenna unit in the six frequency bands of LTE B1, LTE B3, LTEB40, LTEB41, LTE B5, and LTE B8 is reduced.

TABLE 1

The original complete plane performance degradation amount refers to a Total Radiated Power (TRP) degradation of the electrochromic body 132 (without the slit opening) of the original complete plane to the antenna performance. The performance degradation amount of the present application is the total radiation power of the antenna performance using the electrochromic body 132 in the present application embodiment. The performance improvement amount is the difference between the two radiation power reduction amplitudes.

As can be seen from table 1, by providing a slit opening at an end portion of the electrochromic body 132, an influence of a conductive layer material in the electrochromic body 132 on performance of the antenna unit can be reduced, and at the same time, while radiation performance of the antenna unit is improved, a size of the escape area 1312 between the antenna unit and the electrochromic body 132 can be reduced, so as to further improve product expressive force of the rear cover. That is, by providing the slit opening at the end of the electrochromic body 132 while maintaining the same width of the escape area 1312, the overall radiation performance of the antenna unit can be improved.

As shown in fig. 13, further taking the electronic device as the mobile phone 10 for illustration, specifically, as shown in fig. 13, the mobile phone 10 may include a memory 21 (which optionally includes one or more computer-readable storage media), a processor 22, a control circuit 23, and an input/output (I/O) subsystem 24. These components optionally communicate via one or more communication buses or signal lines 29. Those skilled in the art will appreciate that the handset 10 shown in fig. 13 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. The various components shown in fig. 13 are implemented in hardware, software, or a combination of both hardware and software, including one or more signal processing and/or application specific integrated circuits.

The memory 21 optionally includes high-speed random access memory, and also optionally includes non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Illustratively, the software components stored in memory 21 include an operating system 211, a communications module (or set of instructions) 212, a Global Positioning System (GPS) module (or set of instructions) 213, and the like.

The processor 22 and other control circuitry 23 may be used to control the operation of the handset 10. The processor 22 may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, and the like.

The control circuit 23 is coupled to the electrochromic element 132 of the cover plate assembly 13, and the control circuit 23 is configured to receive a control command, where the control command is used to control the electrochromic element 132 to change color. Specifically, the control circuit 23 is configured to receive a control command input through the input/output (I/O) subsystem 24, and control the operating state of the electrochromic element 132 according to the control command; wherein the operation state of the electrochromic element 132 includes controlling to change the voltage or current signal state thereof to achieve the purpose of controlling the color changing state of the electrochromic element 132. Specifically, the control circuit 23 controls the electrochromic element 132 to change the transparent state, and the electronic device can exhibit a color-changing appearance effect by combining structures such as an appearance film and a substrate color layer.

The I/O subsystem 24 couples, among other things, input/output peripheral devices on the handset 10, such as a keypad and other input control devices, to the peripheral interface 23. The I/O subsystem 24 optionally includes a touch screen, buttons, tone generators, accelerometers (motion sensors), ambient and other sensors, light emitting diodes and other status indicators, data ports, and the like. Illustratively, a user may control the operation of the handset 10 by supplying commands through the I/O subsystem 24, and may receive status information and other output from the handset 10 using the output resources of the I/O subsystem 24. For example, a user pressing button 241 may turn the phone on or off.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (13)

1. A cover plate assembly, comprising:

a cover plate;

the electrochromic body is located on the cover plate, the periphery of the electrochromic body is used for arranging an antenna unit, the electrochromic body and the antenna unit are arranged at intervals, and at least one end of the electrochromic body is provided with a gap opening.

2. The cover plate assembly of claim 1, wherein the slit opening comprises a first opening and a second opening, the electrochromic body comprising:

the first conducting layer is positioned on the cover plate, and at least one first end part of the first conducting layer is provided with the first opening;

the second conducting layer is arranged opposite to the first conducting layer, at least one second end part of the second conducting layer is provided with the second opening, and the position of the second end part provided with the second opening corresponds to the position of the first end part provided with the first opening;

and the color change material layer is positioned between the first conductive layer and the second conductive layer and used for switching between a colored state and a transparent state.

3. The cover plate assembly of claim 2, wherein an orthographic projection of the second opening on the cover plate coincides with an orthographic projection of the first opening on the cover plate.

4. The cover plate assembly according to claim 2, wherein the number of the first openings is plural, the openings of the plural first openings are the same size, and/or the intervals between two adjacent first openings are equal.

5. The cover plate assembly according to claim 2, wherein the number of the second openings is plural, the openings of plural second openings are the same size, and/or the intervals between two adjacent second openings are equal.

6. The cover plate assembly of claim 2, wherein the color change material layer comprises:

a plurality of color-changing unit layers arranged on the first conductive layer, the plurality of color-changing unit layers being independently controlled to switch between a colored state and a transparent state, respectively.

7. The cover plate assembly of any one of claims 1-6, wherein four sides of the periphery of the electrochromic body are used for disposing the antenna unit, and all ends of the electrochromic body are provided with the slot openings.

8. The lid assembly according to any one of claims 1-6, wherein the projected shape of the slit opening on the lid is a rectangular opening shape, a trapezoidal opening shape, a V-shaped opening shape, or an arc opening shape.

9. The cover plate assembly according to any one of claims 1 to 6, wherein the number of the electrochromic bodies is plural, a plurality of the electrochromic bodies are sequentially laminated toward a side facing away from the cover plate, and projected areas of the plural electrochromic bodies on the cover plate coincide.

10. An electronic device, comprising:

the cover plate assembly of any one of claims 1-9, and

the frame is located the periphery of apron and with the apron is connected, be formed with antenna element on the frame.

11. The electronic device according to claim 10, wherein the number of the antenna units is plural, and the plural antenna units are distributed on the frame near the slot opening.

12. The electronic device of claim 10, wherein the bezel comprises a top bezel and a bottom bezel that are disposed opposite to each other, and a first side bezel and a second side bezel that are connected between the top bezel and the bottom bezel, and the first side bezel and the second side bezel are disposed opposite to each other; wherein the content of the first and second substances,

a first antenna unit for radiating a first radio frequency signal is formed on the top frame, a second antenna unit for radiating a second radio frequency signal is formed on the first side frame, a third antenna unit for radiating the first radio frequency signal and a fourth antenna unit for radiating the second radio frequency signal are formed on the bottom frame;

the slot opening comprises a first slot opening, a second slot opening, a third slot opening and a fourth slot opening, wherein the first slot opening is close to the first antenna unit, the second slot opening is close to the second antenna unit, the third slot opening is close to the third antenna unit, and the fourth slot opening is close to the fourth antenna unit.

13. The electronic device of claim 12, wherein the number of the first, second, third, and fourth slot openings is plural.

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